International Organization for Standardization (ISO)
Latest
ISO 11901-4:2021
Scope
This document specifies the dimensions (in millimetres), nominal initial forces and types of gas springs.
It is applicable to gas springs with increased spring force and same built height of type 7500 to 200000, pressurized with nitrogen with a nominal initial force of between 7400 N (with a tolerance of ±5 %) and 200000 N (with a tolerance of ±5 %), for use in press tools.
It also specifies marking, technical delivery conditions and designation.
NOTE Specifications of mounting accessories for gas springs are given in ISO 11901-2.
ISO 11901-4:2021 Referenced Document
ISO 2768-1 General tolerances; part 1: tolerances for linear and angular dimensions without individual tolerance indications
ISO 7-1 Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances and designation TECHNICAL CORRIGENDUM 1
ISO 11901-4:2021 history
2021ISO 11901-4:2021 Tools for pressing — Gas springs — Part 4: Gas springs with increased spring force and same built height
2014ISO 11901-4:2014 Tools for pressing - Gas springs - Part 4: Gas springs with increased spring force and same built height